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https://www.readbyqxmd.com/read/28654787/remediation-of-soils-polluted-with-lindane-using-surfactant-aided-soil-washing-and-electrochemical-oxidation
#1
M Muñoz-Morales, M Braojos, C Sáez, P Cañizares, M A Rodrigo
In this work the complete treatment of soil spiked with lindane is studied using surfactant-aided soil-washing (SASW) to exhaust lindane from soil and electrolysis with diamond anodes to mineralize lindane from the soil washing fluid (SWF) waste. Results demonstrated that this technological approach is efficient and allow to remove this hazardous pollutant from soil. They also pointed out the significance of the ratio surfactant/soil in the efficiency of the SASW process and in the performance of the later electrolysis used to mineralize the pollutant...
June 17, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28654076/a-method-to-test-the-efficacy-of-handwashing-for-the-removal-of-emerging-infectious-pathogens
#2
Marlene K Wolfe, Daniele S Lantagne
Handwashing is widely recommended to prevent infectious disease transmission. However, little comparable evidence exists on the efficacy of handwashing methods in general. Additionally, little evidence exists comparing handwashing methods to determine which are most efficacious at removing infectious pathogens. Research is needed to provide evidence for the different approaches to handwashing that may be employed during infectious disease outbreaks. Here, a laboratory method to assess the efficacy of handwashing methods at removing microorganisms from hands and their persistence in rinse water is described...
June 7, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28653727/a-novel-wireless-paper-based-potentiometric-platform-for-monitoring-glucose-in-blood
#3
Rocío Cánovas, Marc Parrilla, Pascal Blondeau, Francisco J Andrade
A novel low-cost, compact and sensitive paper-based platform for the accurate monitoring of glucose in biological fluids is presented. Paper-based working and reference electrodes are combined to build a whole potentiometric cell, which also fits a sampling module for simple and fast determination of glucose in a single drop of blood. The working electrode is built using a platinized filter paper coated with a Nafion membrane that entraps the enzyme glucose oxidase; the reference electrode is made by casting a polyvinylbutyral-based membrane onto a conductive paper...
June 27, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/28652886/a-magneto-fluidic-nanoparticle-trapping-platform-for-surface-enhanced-raman-spectroscopy
#4
Po-Jung Huang, Haley L Marks, Gerard L Coté, Jun Kameoka
A microfluidic device utilizing magnetically activated nickel (Ni) micropads has been developed for controlled localization of plasmonic core-shell magnetic nanoparticles, specifically for surface enhanced Raman spectroscopy (SERS) applications. Magnetic microfluidics allows for automated washing steps, provides a means for easy reagent packaging, allows for chip reusability, and can even be used to facilitate on-chip mixing and filtration towards full automation of biological sample processing and analysis...
May 2017: Biomicrofluidics
https://www.readbyqxmd.com/read/28652822/anemia-in-pregnancy-in-western-jamaica
#5
Saidah Wright, Dominique Earland, Swati Sakhuja, Anna Junkins, Sarah Franklin, Luz Padilla, Maung Aung, Pauline E Jolly
BACKGROUND: Anemia is one of the most prevalent problems in pregnancy. In 2011, 29.9% of all pregnant women in Jamaica were diagnosed with anemia. OBJECTIVE: The objective of this study was to determine the prevalence and predictors of anemia in pregnancy in Western Jamaica. METHODS: A cross-sectional study was conducted among 293 mothers attending post-natal clinics in Western Jamaica. A questionnaire was administered to the mothers, and an abstraction form was used to collect clinical data from the mothers' records...
2017: International Journal of Women's Health
https://www.readbyqxmd.com/read/28652563/vascular-graft-impregnation-with-antibiotics-the-influence-of-high-concentrations-of-rifampin-vancomycin-daptomycin-and-bacteriophage-endolysin-hy-133-on-viability-of-vascular-cells
#6
Monika Herten, Evgeny A Idelevich, Sonja Sielker, Karsten Becker, Anna S Scherzinger, Nani Osada, Giovanni B Torsello, Theodosios Bisdas
BACKGROUND Rifampin-soaked synthetic prosthetic grafts have been widely used for prevention or treatment of vascular graft infections (VGIs). This in vitro study investigated the effect of the antibiotics daptomycin and vancomycin and the new recombinant bacteriophage endolysin HY-133 on vascular cells, as potential alternatives compared to rifampin. MATERIAL AND METHODS Primary human ECs, vascular smooth muscle cells (vSMC), and fibroblasts were cultivated in 96-well plates and incubated with rifampin, daptomycin, vancomycin, and endolysin HY-133 for 24 h...
June 27, 2017: Medical Science Monitor Basic Research
https://www.readbyqxmd.com/read/28651870/advanced-nutrient-removal-from-surface-water-by-a-consortium-of-attached-microalgae-and-bacteria-a-review
#7
REVIEW
Junzhuo Liu, Yonghong Wu, Chenxi Wu, Koenraad Muylaert, Wim Vyverman, Han-Qing Yu, Raúl Muñoz, Bruce Rittmann
Innovative and cost-effective technologies for advanced nutrient removal from surface water are urgently needed for improving water quality. Conventional biotechnologies, such as ecological floating beds, or constructed wetlands, are not effective in removing nutrients present at low-concentration. However, microalgae-bacteria consortium is promising for advanced nutrient removal from wastewater. Suspended algal-bacterial systems can easily wash out unless the hydraulic retention time is long, attached microalgae-bacteria consortium is more realistic...
June 13, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28651869/hydrothermal-pretreatment-on-the-anaerobic-digestion-of-washed-vinegar-residue
#8
Genzhu Ran, Dong Li, Tao Zheng, Xiaofeng Liu, Lin Chen, Qin Cao, Zhiying Yan
The aim of this work was to study the acetate separation from fresh vinegar residue (FVR) to avoid inhibition of methanogenesis and hydrothermal treatment on washed vinegar residue (WVR) to enhance methane production. The optimal liquid-solid ratio was 10:1mL/g for the washing of FVR. The methane yields of the FVR, WVR, and washed leachate (WL) were 273L/kgVS, 199L/kgVS, and 306.9L/kgCOD, respectively. The optimal hydrothermal temperature was 160°C for WVR, with maximum methane yield of 258.38L/kgVS. Hydrothermal pretreatment destroyed the structure of lignocellulose and improved the hydrolysis of hemicellulose...
June 15, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28651485/intraoperative-left-atrium-inversion-after-implantation-of-heartmate-iii-ventricular-assist-device
#9
Ayşegül Ozgök, Z Asli Demir, Gökçe Sert, Doğan Sert, Zehra Gölbaşı, Umit Kervan
We report here a case of left atrium inversion after implanting HeartMate III LVAD, which is known to be the first in literature. LVAD can be functional only if there is adequate inflow to the device. Parameters and filling of left ventricle can be assessed by TEE. In our case, initial examination with TEE showed thrombus like images. HeartMate III has a reliable algorithm that automatically reduces pump speed if 'suction effect' is detected. HeartMate III demonstrates clean flow properties and good surface wash...
June 27, 2017: Acta Chirurgica Belgica
https://www.readbyqxmd.com/read/28651076/application-of-water-assisted-ultraviolet-light-in-combination-of-chlorine-and-hydrogen-peroxide-to-inactivate-salmonella-on-fresh-produce
#10
Shuanghuan Guo, Runze Huang, Haiqiang Chen
With the demand for fresh produce increases in recent decades, concerns for microbiological safety of fresh produce are also raised. To identify effective ultraviolet (UV) light treatment for fresh produce decontamination, we first determined the effect of three forms of UV treatment, dry UV (samples were treated by UV directly), wet UV (samples were dipped in water briefly and then exposed to UV), and water-assisted UV (samples were treated by UV while being immersed in agitated water) on inactivation of Salmonella inoculated on tomatoes and fresh-cut lettuce...
June 19, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28650856/a-rare-case-of-pupillary-block-glaucoma-following-centraflow-implantable-collamer-lens-surgery
#11
Isha G Grover, Sirisha Senthil, Somasheila Murthy, Jagadesh C Reddy
A 28-year-old lady with a refractive error of -11.0 D sphere/-1.50 D cylinder at 160 degrees in the right eye underwent an uneventful Implantable Collamer Lens surgery (ICL) with a V4c model, which uses a central Aquaport. This ICL does not require preoperative laser iridotomy or surgical iridectomy, as the centraflow opening is designed to prevent pupillary block. At postoperative day 1, her visual acuity in the right eye was 20/400, with diffuse microcystic corneal edema with fixed, dilated pupil and high intraocular pressure...
June 23, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28648731/degradation-characteristics-of-dioxin-in-the-fly-ash-by-washing-and-ball-milling-treatment
#12
Baohua Li, Zhiyi Deng, Wenxiang Wang, Hongsheng Fang, Haibiao Zhou, Fangxin Deng, Ling Huang, Huiying Li
In this study, samples were taken from different types of municipal waste incineration plants in the Pearl River Delta, China. Analyzing the distributive characters of elements and dioxin congeners in fly ash, the method of washing-ball milling was utilized to remove chloride and degrade dioxin in fly ash. The results showed that more than 90% of particles were in the range of 1∼50μm and most of dioxin and metals existed in 0.030∼0.075mm of particles. K, Na, Cl and Br in fly ash could be removed by washing efficiently, however dioxin and other metals remained in the solid phase...
June 6, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28648496/fruits-as-the-vehicle-of-drug-resistant-pathogenic-yeasts
#13
Hsiu-Jung Lo, Sheng-Hua Tsai, Wen-Li Chu, Yin-Zhi Chen, Zi-Li Zhou, Hong-Fu Chen, Ching-Fu Lee, Yun-Liang Yang
OBJECTIVE: We investigated the diversity and drug susceptibility of pathogenic yeasts on fruit surfaces. METHOD: Fruits were purchased from supermarkets and washed with buffer. The pellets were re-suspended in medium after centrifugation. The cell suspensions were plated onto CHROMagar Candida medium. Yeasts were identified by ribosomal DNA sequencing and their drug susceptibilities were determined by broth microdilution assay. RESULTS: Of 184 isolates, comprised of 55 species, from 22 different types of fruits, 29 species, including Candida famata, Candida fermentati, Candida guilliermondii, Candida intermedia, Candida krusei, Candida orthopsilosis, Candida parapsilosis, Candida pelliculosa, Candida tropicalis, and others have been reported to cause diseases in humans...
June 22, 2017: Journal of Infection
https://www.readbyqxmd.com/read/28648471/optimisation-of-continuous-gas-fermentation-by-immobilisation-of-acetate-producing-acetobacterium-woodii
#14
Franziska Steger, Lydia Rachbauer, Matthias Windhagauer, Lucy F R Montgomery, Günther Bochmann
Hydrogen from water electrolysis is often suggested as a way of storing the excess energy from wind and solar power plants. However, unlike natural gas, hydrogen is difficult to store and distribute. One solution is to convert the hydrogen into other fuels or bulk chemicals. In this study we investigated fermentation in which homoacetogenic clostridia apply the Wood-Ljungdahl pathway to generate acetate from H2 and CO2. Acetate can be used as a bulk chemical or further transformed into biofuels. Autotrophic growth with CO2 as the sole carbon source is slow compared to heterotrophic growth, so the aim of this work was to improve continuous gas fermentation by immobilising the acetate-producing clostridia, thus preventing their wash out from the bioreactor...
June 22, 2017: Anaerobe
https://www.readbyqxmd.com/read/28648298/slightly-acidic-electrolyzed-water-combined-with-chemical-and-physical-treatments-to-decontaminate-bacteria-on-fresh-fruits
#15
Charles Nkufi Tango, Imran Khan, Paul-François Ngnitcho Kounkeu, Rubab Momna, Mohammad Shakhawat Hussain, Deog-Hwan Oh
Effect of sequential combination of slightly acidic electrolyzed water (SAEW) with chemical and physical treatments on bacterial decontamination on fruits was investigated in this study. Effect of treatments on microbial and sensory quality was also analyzed after subsequent storage at 4 °C and room temperature (RT, 23 ± 0.15 °C). Whole apple and tomato fruits were inoculated with cocktail strains of Escherichia coli O157:H7 and Listeria monocytogenes. Uninoculated and inoculated fruits were washed first with distilled water (DW), calcium oxide (CaO), fumaric acid (FA), and SAEW at RT for 3 min...
October 2017: Food Microbiology
https://www.readbyqxmd.com/read/28647890/comparison-of-lercanidipine-plus-hydrochlorothiazide-vs-lercanidipine-plus-enalapril-on-micro-and-macrocirculation-in-patients-with-mild-essential-hypertension
#16
Carolina De Ciuceis, Massimo Salvetti, Anna Paini, Claudia Rossini, Maria Lorenza Muiesan, Sarah Duse, Stefano Caletti, Maria Antonietta Coschignano, Francesco Semeraro, Valentina Trapletti, Fabio Bertacchini, Valeria Brami, Alina Petelca, Enrico Agabiti Rosei, Damiano Rizzoni, Claudia Agabiti Rosei
Dihydropyridine calcium channel blockers may possess antioxidant properties, and might improve micro and macrovascular structure and function. Combination treatment with an ACE inhibitor may have additional advantages, compared with a thiazide diuretic. The aim of the present study is to investigate the effects of a short-term treatment with lercanidipine, and to compare two combination treatments: lercanidipine + enalapril vs. lercanidipine + hydrochlorothiazide on structural alterations in retinal arterioles, on skin capillary density and on large artery distensibility...
June 24, 2017: Internal and Emergency Medicine
https://www.readbyqxmd.com/read/28647513/respiratory-syncytial-virus-bronchiolitis-weather-conditions-and-air-pollution-in-an-italian-urban-area-an-observational-study
#17
Raffaella Nenna, Melania Evangelisti, Antonella Frassanito, Carolina Scagnolari, Alessandra Pierangeli, Guido Antonelli, Ambra Nicolai, Serena Arima, Corrado Moretti, Paola Papoff, Maria Pia Villa, Fabio Midulla
BACKGROUND: In this study we sought to evaluate the association between viral bronchiolitis, weather conditions, and air pollution in an urban area in Italy. METHODS: We included infants hospitalized for acute bronchiolitis from 2004 to 2014. All infants underwent a nasal washing for virus detection. A regional agency network collected meteorological data (mean temperature, relative humidity and wind velocity) and the following air pollutants: sulfur dioxide, nitrogen oxide, carbon monoxide, ozone, benzene and suspended particulate matter measuring less than 10µm (PM10) and less than 2...
June 22, 2017: Environmental Research
https://www.readbyqxmd.com/read/28647455/comparison-of-mucosal-lining-fluid-sampling-methods-and-influenza-specific-iga-detection-assays-for-use-in-human-studies-of-influenza-immunity
#18
Thushan I de Silva, Victoria Gould, Nuredin I Mohammed, Alethea Cope, Adam Meijer, Ilse Zutt, Johan Reimerink, Beate Kampmann, Katja Hoschler, Maria Zambon, John S Tregoning
We need greater understanding of the mechanisms underlying protection against influenza virus to develop more effective vaccines. To do this, we need better, more reproducible methods of sampling the nasal mucosa. The aim of the current study was to compare levels of influenza virus A subtype-specific IgA collected using three different methods of nasal sampling. Samples were collected from healthy adult volunteers before and after LAIV immunization by nasal wash, flocked swabs and Synthetic Absorptive Matrix (SAM) strips...
June 21, 2017: Journal of Immunological Methods
https://www.readbyqxmd.com/read/28647423/sterilizing-service-unit-packing-area-to-glove-or-regular-hand-hygiene-that-is-the-question
#19
Dayane de Melo Costa, Lillian Kelly de Oliveira Lopes, Anaclara Ferreira Veiga Tipple, Roel Beltran Castillo, Honghua Hu, Anand Kumar Deva, Karen Vickery
BACKGROUND: During functionality testing and packaging of reusable surgical instruments (RSI) for sterilisation, instruments are frequently touched. Considering the lack of standards relating to hand hygiene frequency and use of gloves in the sterilising service unit packing area, we aimed to determine the effect of hand hygiene and glove use on maintenance of RSI cleanliness. METHODS: Following manual and automated cleaning, Halsted-mosquito forceps were assessed for adenosine triphosphate (ATP), protein and microbial contamination after handling with gloved and ungloved but washed hands utilising an ATP surface swab test, bicinchoninic acid assay, and standard culture plate/broth, respectively...
June 21, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28647229/a-combined-process-coupling-phytoremediation-and-in-situ-flushing-for-removal-of-arsenic-in-contaminated-soil
#20
Xiulan Yan, Qiuxin Liu, Jianyi Wang, Xiaoyong Liao
Phytoremediation and soil washing are both potentially useful for remediating arsenic (As)-contaminated soils. We evaluated the effectiveness of a combined process coupling phytoremediation and in situ soil flushing for removal of As in contaminated soil through a pilot study. The results showed that growing Pteris vittata L. (P.v.) accompanied by soil flushing of phosphate (P.v./Flushing treatment) could significantly decrease the total As concentration of soil over a 37day flushing period compared with the single flushing (Flushing treatment)...
July 2017: Journal of Environmental Sciences (China)
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